Shortly after joining the Mac, Lindsey Buckingham co-produced the second solo album (Not Shy) for a young artist. While working on it, the artist met Stevie Nicks. Years later, he admitted he was "smitten" by Stevie (understandably; in the mid/late-70's, who wouldn't have been?). But not knowing the real story, he figured she and Lindsey were a solid couple, so he wrote the song to her as his only option to express how he felt, and let it go as a dream that would never be. The artist was Walter Egan, and this song was the effort. Stevie sang as one of the backing vocals (not in the video though), unaware at the time she was the inspiration for the song. It was Egan's biggest hit, peaking at #8 on the Billboard Hot 100 in 1978.